My 2004 Buick rendezvous is at 170K miles. I don’t have any issues with the transmission fluid but the fluid is very brown. I had to get some work done on it recently at a shop that does transmission work and I asked if they could change the fluid but they said that changing it and getting new fluid could damage the transmission. I don’t know when the last time I did a fluid change was but it’s most likely been years.

So what should I do at this point? I’m worried to keep driving and make it worse and then it actually damage the transmission and then have to get it replaced or something. I plan on getting another car next year when I can save up some money hopefully.